of training: ‘High-intensity, shorter intervals interspersed with rest periods, which includes tempo runs, fartlek and any other kind of speedwork,’ says Dr Chris Easton, lecturer in clinical exercise physiology at the University of the West of Scotland. ‘And

and physiologist Iñigo Mujika, a leading expert on tapering, sees a way around that problem. Mujika suggests athletes start their taper early, scaling back on mileage but not intensity, then three days before the event, ‘reload’ their muscles with an interval

and fitness improvement.% of your average heart rateWarm-up/cool-down 82-90%Recovery run 82-90%Steady state run 92-98%Tempo run 98-102%Fartlek intervals 98-108%Hill intervals 98-108%Track intervals 98-108%Race 98-102%

of training: ‘High-intensity, shorter intervals interspersed with rest periods, which includes tempo runs, fartlek and any other kind of speedwork,’ says Dr Chris Easton, lecturer in clinical exercise physiology at the University of the West of Scotland. ‘And

of your performance, but in extreme cases your health. Here are some cross-training session suggestions to get you used to the heat so you're fully prepared for the big day:Spin classesInterval sessions on a bike have good carry over to running

it hits your lungs.Keep it short ‘An exercise-induced bronchospasm typically occurs about six minutes into vigorous exercise,’ says Dr Maharam. When you’re doing interval workouts, keep reps under six minutes.Provoke it It sounds dubious, but Dr Maharam